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/*****************************************************************************
* Copyright (c) 2012 CEA LIST.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.timing.custom.figures;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.papyrus.uml.diagram.common.figure.node.PapyrusNodeFigure;
import org.eclipse.swt.SWT;
public class DimensioningArrowFigure extends PapyrusNodeFigure {
private static final int PREFERRED_HEIGHT = 11;
public DimensioningArrowFigure() {
super();
setShadow(false);
setBorder(null);
}
@Override
public void paintFigure(final Graphics g) {
g.pushState();
final int middleX = this.bounds.x + this.bounds.width / 2;
final int middleY = this.bounds.y + this.bounds.height / 2;
final int x = this.bounds.x;
final int w = this.bounds.width - 1;
final int horizontalGap = w / 3;
final int arrowSize = Math.max(Math.min(w / 5, 7), 3);
final int verticalLineSize = arrowSize * 3;
g.setLineWidth(1);
// horizontal line (left part)
g.drawLine(x, middleY, middleX - horizontalGap / 2, middleY);
// horizontal line (right part)
g.drawLine(middleX + horizontalGap / 2, middleY, x + w, middleY);
// left vertical line
g.drawLine(x, middleY - verticalLineSize / 2, x, middleY + verticalLineSize / 2);
// right vertical line
g.drawLine(x + w, middleY - verticalLineSize / 2, x + w, middleY + verticalLineSize / 2);
g.setAntialias(SWT.ON);
// left arrow
g.drawLine(x, middleY, x + arrowSize, middleY - arrowSize);
g.drawLine(x, middleY, x + arrowSize, middleY + arrowSize);
// right arrow
g.drawLine(x + w, middleY, x + w - arrowSize, middleY - arrowSize);
g.drawLine(x + w, middleY, x + w - arrowSize, middleY + arrowSize);
g.popState();
}
@Override
public Dimension getPreferredSize(final int wHint, final int hHint) {
return new Dimension(-1, PREFERRED_HEIGHT);
}
}
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